Roadway sander



. P\ R n n Q O T R N MW N f llllll w T o0 |1 N w 0u. T 2 E: l A T. 7 5 7M 7, R 1.. .l D 4.o N l 2 I .siw wai? r //,f \I li mill 1 I I I I .Il of, n l 8 Re 2 m- M l G D R n e E m 2 1 m n .u c m m. S. O d R e A n F O3 9 l 5 g M Patented Aug. A5,l `193()` ANDREW scnunno'nn, oreLnvELAND,oH1o

musea i i Application kfiled April 26,

A Myinventionrelates to improvements in roadway'sanders, and `morepartieularlyto roadway 'sandersformotor vehicles in 4which anlanti-skidcling-v material stored in'a con- 5. trainer upon the vehicle,is dispensedto the street in the path of the Adrivin'gwheelslso that`the tires contacting with said material are prevented from skidding. v.l l r The general object of my invention `is to provide a simpleandcompact unityoflsuch a sander adapted to be attached to anyautomobile, Vwhich unit according to 'my'` invention Y includesa-container orrhopper' rigidly con` nected to` thechassis of the vehicleand iiex' f ible dispensing tubestor the antilskid mate- Y rialconnected tosaid container and to the yieldingly supported rear axle 'ofthevehicle or to its yielding supporting means closeto said axle. Suchan arrangement` assures proper. dispensing `ot the antilskidmateriarlinto the lpath of thedriv-ing wheels so that the sander willy actproperly under all Vconrlitions without necessitating extensiveapplication of anti-skid material.

Another object of my 'invention is the heating otsuch 'flexibledispensing tubes, prefer- 'ably-l by` the exhaust gasofy the engine ofthe Vmotorvehicle. l 1 y,

It has already beenfproposed to heat 'the container oi'a roadwaysandingdeviceybut such container, generally arranged within the car, isnot exposed to the open 'atmosphere, and theretoreheating of thecontainer will `not prevent freezing and cloggmguplot elongateddispensing tubes yopenly exposed to the atmosphere and to splashesofwater, dirt, or snow.` l Y A stillfurther object offmy invention is avalve mechanism associated with the container adaptedto rvautomaticallyvcontrolthe amount to be dispensed and adjustable to the special needsofi any motor vehicle equipped with my roadway sander.

Still other objects', t my iiiventionlwill more readily be understoodfrom the follow- 1928'. iSerial No. 272,924.` 'V f ingydescription. ofYmy i-nvention and the drawings forming part thereof, andare particularlypointedout in the claims. l u n Inithe accompanying drawing, Fig.` lyisy a side view of'an automobile showingilr dot'-r tedlines the locationof the sander and fits i operating mechanism. Fig. 2 is a plan View ofthe sander and operating mechanism, the

outline of theautomobile being shown in dotted lines. Figz is asectional viewthrough the frame chassis of an automobile showing a frontview` of the container or hopper of the sander, the liexiblel dispensingtubes connected'uwith saidV hopper` andthe heatingmeans tor theflexibletujbes'. Fig. 4: is a perspective sectional view through thehopper and one of the'outlets thereof, and 5 is anenlarged sectionalview th'roughthe valve mechanism otthehopper. 1" .I f i rEhe sheet metalcontain`er`2 ofthesanil-ing` nnit,directly supported on the chassis CI`is divided-:into twosymmetrical hopper-like compartments 3, `"each ofwhich includesan outlet 4 governed by a valve unit 5 within f and abovethe outlet t of compartment' 3.

Saidvalve 'unit `5 extends through outlet 4 into a tubular attachmentGot circular cross- -section Vrigidly connectedito container 2 andelongat'edvbyja flexible'metalor rubber tube 7 screw-connected therewithby means of .screw members'S, `so that oneend 8 of v'said flexible`.tube 7 is rigidly connected `to and supported by chassis Cr' Theotherlend 9 ofrsaid lexible'tubeis so attaehedto spring lOconnecting`rear `axle A with chassis C that outlet 11v of tube 7 is approximatelysuspended in frohtof and directly above lthe path of the correspondingdriving Wheel. Such mounting of iexible tubes7`v` permits oscillationsyof lchassisGand thereby of con.- tainer'2 with respect to rear axle Awithout changingithe position. ofoutlets 1l to the driving wheels sothat both outletsll always dispense c the anti-skid material exactlyinto the path of said wheels. To prevent freezing or clogging of saidoutlets 11 heating boxes 12 heated b the exhaust gas) encircle tubes 7and these oxes, one for eachflexible tube 7, are preferably connected inseries with the exhaust pipe D of the Vehicle.

Now, referring to the valve or controlling unit for the material to bedispensed, this unit comprises a valve stem 14 slidably guided by aU-shaped bracket 15 rigidly connected to the hopper-like compartment 3of container 2, directly above outlet 4. Valve stem Y14 supports tworound-valve disks 16 and 17 adjustably secured to said stem by means ofscrew members 18 and 19,

Ament 6. It will benoted that opening 20 is of smaller diameter thantubular attachment 5.topermit continuous discharge of the con- V`tentsof compartment 3' (preferably sharp sand or crushed stone of granularcharacteristics) as soon as valve stem 14 and thereby disk 17 is loweredand that furthermore disk 16 also lowered by such action, tends to closeopening 20. If disk 16 is so adjusted that a 4full throw of the valvealigns said disk with openingy 20, to give the operator 'full control ofthe amount to-be dispensed during operation of the valve unit 5, but bychanging the Vrelative position of disks 16 and 17 on stem 14 the valvemay readily be adjusted to dispense' the4 desired quantity necessary forthe type of car to which the roadway sander is attached. Y

Theshown operating means for the valve unit include a crank lever 21linked' by member 22 to valve stem 14, and said crank lever pivotallysupported in attachment 6 is operatively c onnectedover operating lever23 and connecting rope 24 to a foot pedal 25 close to yand aligned withthefbrake pedal 26 of the vehicle; Pedal `bears at its top ,portion aplate 27 of elongated form shiftable for engagement with brake pedal 26to permit either independent activating of the sanding device oractivating of said device by. said'brake pedal 26. n

To Asecure simultaneous action of both valve units 5 I prefer the use ofan equalizingbar 28 in the operating line between valve units 5 andoperating lever 25. Y What I claim, is:

1. A roadway sander adapted to be attached to a motor vehicle,comprising a sand container having symmetrically arranged outlets, valvemeansfor each'of said outlets,

l flexible dispensing tubes connected to said outlets of `saidcontainer, and heating boxes for each of said flexible tubes adapted tobe heated by the exhaust gas of a motor vehicle, each box encircling oneof said tubes and said boxes being in series connected with each other.

A roadway sander adapted to be at'- tached to a motor vehicle,comprising a sand container having two symmetrically arranged hoppercompartments in the lower part thereof, a valved outlet for each of saidhopper compartments, flexible dispensing tubes connected to each of saidvalved outlets and heating boxes encircling said flexible tubes andadapted to be heated by the exhaust. gas of the motor vehicle.

frame of said vehicle and the flexible tubes being connected to saidrear axle of the vehicle. Y f f 4.TA roadway sander, comprising a sandcontainer," having two symmetrically arranged outlets at the bottomthereof, valveV means for each of said outlets and flexible dispensingtubes-connected to said outlets in combination with a motor vehiclehaving a frame, wheel supporting axles and springs connecting said axleswith said frame, said container being rigidly supported by said frameand said flexible tubes being supported by said'springs close to saidaxles and in approxlmate alignment with the path of wheels.`

y5A roadway sander, comprising a sand container having symmetricallyarranged outlets at the bottom thereof, valve means for eachyof saidoutlets, flexible dispensing tubes` attached to said outlets, andheating boxes for each of said flexible tubes `in combination with aVmotor vehicle having a frame, axles and spring ymeans connecting saidaxles with said frame, vsaid container being rigidly held end of saidflexible tubes being attached to said spring means and the heating boxesbeing heated by the exhaust gas of the motor vehicle.

6.`A roadway sander, adapted to be attached vto a motor vehicle,comprising a sand container, an outlet arranged at the bottom of saidcontainer, adjustable valve means attached to said container forcontrolling the amount of material tofbe dispensed therefrom, and aflexible dispensing tube connected tosaid outlet, said valve means forsaid outlet including a valve stem and two valve disks adjustablysecured thereon, so that both disks alternately open and close suchoutlet during a single operation of said valve l means.

by said frame, thefree 7. A roadway sander, adapted to be attached to amotor Vehicle, comprising a sand container having an outlet atthevbottom thereof, valve means controlling said outlet, a flexibledispensing Vtube connected to said outlet of said container and heatingboxes encircling seid flexible tube adaptedy to be heated by the exhaustgas of the motor Vehicle. K

In testimony whereof I aix my signature.

ANDREW SCHUERGER.

